Book-sewing machine.



No. 885,053. PATENTBD APR. 21, 1908.

G.-JO0S.

BOOK SEWING MACHINE.

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No. 885 053. PATENTED APR. 2

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BOOK SEWING MACHINE. APPLICATION II'ILBD In 19, 1903. 19 SHEETS SHEET 3.

THE Nana's PETERS co., \nsnmnron, n. c.

PATBN'I'ED APR. 21, 1908.

G. JOOS.

BOOK SEWING MACHINE.

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No. 885,053. PATENTED APR. 21, 1908.

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BOOK SEWING MACHINE. APPLIOATIOK run) an 19, 1903.

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No. 885,053. PATENTED APR. 21, 1908.

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BOOK SEWING MACHINE.

APPLICATION FILED MAY 19, 1903.

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BATENTED APR. 21, 190s.

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BOOK SEWING MACHINE.

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7H5 nomus P No. 885,053. PATENTED APR. 21, 1908.

G. JOOS.

BOOK SEWING MAGHINE.

APPLICATION FILED MAY 19, 1903. 19 SHBB S SHEBT 17' No. 885,053. PATENTB D APRJ'Zl, 1908.,

G. JOOS.

BOOK SEWING MACHINE. APPLICATION FILED Mn 19, 1903.

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wp'neae 6. haewrx No. 885.053. PATENTED APR, 21, 1908. G. JOOS.

BOOK SEWING MACHINE.

L T APP 10A. ION FILED MAY 19, 1903 19 SHEETS SHEET 19- UNITED surges PATENT OFFICE.

CONRADIN JOOS, OF FRAUENFELD, SWITZERLAND, ASSIGNOR TO ACTIENGESELLSCHAFT VORMALS F. MARTINI & CIE., OF FRAUENFELD, SWITZERLAND.

BOOK-SEWING- MACHINE.

Specification of Letters Patent.

Patented April 21, 1908.

Application filed May 19, 1903 Serial No. 157,817.

T 0 all whom it may concern:

Be it known that I, CONRADIN Joos, a citizen of the Republic of Switzerland, residing at Frauenfeld, Canton Thurgau, Switzerland, have invented certain new and useful Improvements in Book-Sewing Machines, of which the following is a specification.

My invention relates to the art of sewing the leaves of books together, and particularly to the kind of machine designed to sew with thread the sections of books known to the trade as signatures, and to firmly sew together a series of said signatures, and in such sewing to form a certain double la safety stitch in the thread. The objects of my invention are, to so improve a machine of the character specified as to make it entirely automatic, accurate in its working, easily adjustable, and to facilitatethe operation of moving the separate signatures to place and binding them together; also to provide improved mechanism for forming the peculiar stitch which I use, and for carrying out all the operations of sewing the book; also various improvements in the structure, assemblage and operation of the parts of the machine to generally improve its efficiency and accuracy and ease of working, as will be hereinafter fully set forth in the description and pointed out in the claims.

The machine which I have invented is illustrated in preferred form. in the accompanying drawings, wherein Figure 1 is a right side elevation of the complete machine.

Figure 2 is a left side elevation.

Figure 3 is a rear elevation of the complete machine.

Figure 4 is an enlarged view partially in section, taken ,vertically through the machine, toward the left side and looking to the right, or in the same direction as the view of Figure 2.

Figure 5 is a partial vertical section through the machine, taken near the center and looking in the opposite direction to Figure 4,that is, to the left.

Figure 6 is a partial vertical section showing the two ends of the machine, taken along the center line of the main driving shaft shown at the center of Figure 4 and marked 117, most of the machinery being removed except the cams and gears upon the central driving shaft.

Figure 7 is an enlarged partial front view of the machine, showing the saddle down.

Figure 8 is a partial view showing theframe carrying the gang of needles and its mounting, and a partial section taken along the line 8 shown in Figure 4.

Figure 9 is a view of the other end of the supporting bar and the other frame for carrymg the gang of needles, the needles being removed.

Figure 10 is an enlarged vertical sectional view, showing the mounting of the needle and the needle carrier on its supporting bar.

Figure 11 is, a lan view of the needle bar guide shown in e evation in Figure 9.

b Figure 12 is a rocker arm for the take-up Figures 13 and 14 are detail plan views of the mechanism for rotating the needles.

Figure 15 is a plan of the frame 84 of the needle carriage.

Figures 16 and 17 are detailed sectional views showing the mechanism within the saddle for sup orting the signatures and the mounting of the loopers therein, to be hereinafter described.

Figure 18 is a erspective view of the takeup rocker and t e tension bar.

Figures 19, 20, 21 and 22 are detail views of the loopers and the rack mechanism for shifting the loopers, to be hereinafter described.

Figures 23 and 2-4 are enlarged detailed views of the lever arms, link and cam mechanism for pivotally shifting the supporting saddle for the signatures.

Figure 25 is an enlar ed detailed view of the cam, the lever arm, 'nks and the sliding carrier head for imparting the reciprocating motion of the gang of needles.

Figure 26 is an enlarged detailed View of the lever arm, link and cam mechanism for operating the pusher or shifting device for the signatures.

Figure 27 shows the lever arm, links and cam mechanism for operating the shiftin devices of the loopers, to be hereinafter y described.

Figure 28 is an enlarged detailed view of the pinion, rocker, lever arm, link and cam 

